public class PresenterBase : INotifyPropertyChanged
    {
        private string _myProperty;
        public string MyProperty
        {
            get
            {
                return _myProperty;
            }
            set
            {
                _myProperty = value;
                OnPropertyChanged(() => MyProperty);
            }
        }
 
        protected virtual void OnPropertyChanged<T>(Expression<Func<T>> propertyEvaluator)
        {
            var lambda = propertyEvaluator as LambdaExpression;
            var member = lambda.Body as MemberExpression;
            var handler = PropertyChanged;
            if (handler != null)
            {
                handler(this, new PropertyChangedEventArgs(member.Member.Name));
            }
        }
 
        #region INotifyPropertyChanged Members
 
        public event PropertyChangedEventHandler PropertyChanged;
 
        #endregion
    }